Stages cycling SIP1, Руководство пользователя

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7
How to calibrate
Calibrating the zero offset is a function controlled by the Stages SIC1 display
console, or cycle computer (display units) paired to the power meter. Please
note that some device manufacturers refer to the step of resetting the zero
offset as “calibration”. When paired to a Stages SIC1 display console or other
compatible ANT+ cycle computer, the power meter and display units are
in two-way communication. The display unit will send a command to the
power meter to calibrate the zero offset value and in some cases the resulting
zero offset value will be sent back from the power meter to the display unit and
be shown on the screen. Please note the displayed zero offset value will NOT
be zero but rather a number that corresponds to the measurement taken
by the sensor. The display units will also indicate if the procedure was success-
ful or failed.
Before attempting to calibrate the zero offset value of the power meter, ensure
that a working battery is in use and the pedal is attached. Rotate the power
meter one revolution to ensure the power meter is awake and ready to
communicate.
The left crank arm with power meter MUST be positioned straight down (6
o’clock position) and ensure there is no load on the pedals and the bike is
stable. See FIG 2 for a visual reference. If the left crank arm is not straight
down the reset procedure for zero offset will fail.
To calibrate the zero offset of the power meter, follow the instructions
supplied with Stages SIC1 display console or ANT+ display console being used
with the power meter.
Loads applied while pedaling will then be measured as torque and used by the
sensor to determine power in Watts. The zero offset value can be affected by
the installation of the crank arm and the tightening of the securing hardware.
The torque applied to the securing hardware can impart some strain into the
crank material that is easily accounted for by manually calibrating the zero
offset. Any time the power meter is removed from the bike and reinstalled, the
zero offset should be calibrated.